First get the equation into the form: Ax^2 + Bx + C = 0 (the quadratic equation)..
We do this by subtracting 10x both sides (to get it on the other side)..
9x^2 + 2 = 10x
9x^2 - 10x + 2 = 10x - 10x
9x^2 - 10x + 2 = 0
Now the discriminant is: b^2 - 4ac
The quadratic equation is Ax^2 + Bx + C = 0
Here, A = 9, B = -10 and C = 2 so plug them in...
(-10)^2 - 4 (9)(2)
= 100 - 4 (18)
= 100 - 72
= 28 <--- answer...
angles in a triangle = 180 degrees
70 +35 = 105 degrees
180-105 = 75 degrees
3rd angle = 75 degrees
Answer:
83/100 is the answer
Step-by-step explanation:
pls mark as brainliest
Answer:
<em>S = 151°</em>
Step-by-step explanation:
Recall that the sum of the measures of the interior angles of a polygon with n sides is (n – 2)180.
Here we have a polygon with 5 sides (n=5), so the sum of its interior angles must be
(5-2)*180 = 540°
So
P+Q+R+S+T = 540°
(10x-3)+(5x+2)+(7x-11)+(13x-31)+(8x-19) = 540°
43x - 62 = 540
43x = 540 + 62
43x = 602
x = 602/43
x = 14°
The angle S equals 13x - 31 = 13*14 - 31 = 151°
S = 151°
You can compute all the other angles as well.
Answer:
8/25
Step-by-step explanation:
0.32 as a fraction is 8/25